all of the above

spinal cord

a nerve

brains

wire

the brain

muscle

nerve

muscle cells

stem cells

glial cells

prison cells

100 miles per hour

150 meters per second

1 meter per second

1 foot per second

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

electrical impulses

hormonal

proteins

telegraph

10 years

1 year

1 month

100 years

stem cells

liver cells

muscle cells

skin cells